Thermal pack



FIG. 1 is top plan view of a thermal pack showing our new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a side elevational view thereof;

FIG. 5 is a perspective view thereof;

FIG. 6 is a left end elevational view thereof;

FIG. 7 is a right end elevational view thereof; and,

FIG. 8 is a perspective view thereof. 

The ornamental design for a thermal pack, as shown and described. 